EP2781269A1 - Générateur de vibrations, notamment pour une machine de construction - Google Patents

Générateur de vibrations, notamment pour une machine de construction Download PDF

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Publication number
EP2781269A1
EP2781269A1 EP13160158.5A EP13160158A EP2781269A1 EP 2781269 A1 EP2781269 A1 EP 2781269A1 EP 13160158 A EP13160158 A EP 13160158A EP 2781269 A1 EP2781269 A1 EP 2781269A1
Authority
EP
European Patent Office
Prior art keywords
unbalance
housing
vibration generator
output shaft
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13160158.5A
Other languages
German (de)
English (en)
Inventor
Horst Damm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eurodrill GmbH
Original Assignee
Eurodrill GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eurodrill GmbH filed Critical Eurodrill GmbH
Priority to EP13160158.5A priority Critical patent/EP2781269A1/fr
Priority to CA2845181A priority patent/CA2845181C/fr
Priority to JP2014053514A priority patent/JP5837638B2/ja
Priority to US14/221,159 priority patent/US9463490B2/en
Priority to CN201410103853.8A priority patent/CN104107796B/zh
Publication of EP2781269A1 publication Critical patent/EP2781269A1/fr
Priority to HK15100696.0A priority patent/HK1200402A1/xx
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/166—Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18544—Rotary to gyratory
    • Y10T74/18552—Unbalanced weight

Definitions

  • the invention relates to a vibration generator, in particular for a construction machine, with at least one rotatably mounted unbalance unit with at least one unbalance element, a rotary drive, a gear arrangement with at least one gear, wherein by means of the gear arrangement, a rotation generated by the rotary drive can be transmitted to the at least one unbalance unit, and a housing in which the gear assembly is received, according to the preamble of claim 1.
  • Such a vibration exciter goes for example from the EP 0 824 971 B1 out.
  • a vibration exciter as it is intended for construction machines, in particular vibrators, has a central rotary drive, which causes a plurality of imbalance units in rotation via a gear arrangement.
  • the imbalance units each have an imbalance element, which are formed together with the gears as rotation elements. These are mounted on their outer side via rolling bearings in a housing.
  • the rotating imbalance masses can be used to generate vibrations.
  • the imbalances can add or compensate each other.
  • Such vibration exciters find about when ramming planks in loose soil in so-called vibrators application.
  • vibration generators for generating vibrations can also be used on drills, such as from DE 196 08 815 C1 evident.
  • the vibrations can bring about a significant improvement in the rate of drilling.
  • the unbalance elements are housed together with the gear assembly in a housing. Due to the partially rotating at high speed gear wheels and imbalance masses with several hundred to several thousand revolutions per minute, the housing is filled with oil for lubrication.
  • the invention has for its object to provide a vibration exciter, which has a simple and easy to maintain design and allows energy-saving operation.
  • the vibration exciter according to the invention is characterized in that an output shaft can be driven by the gear arrangement, which extends out of the housing, and that the at least one imbalance element is mounted outside of the housing on the output shaft.
  • a basic idea of the invention is to continue to provide the gear arrangement for driving the imbalance units within the housing, while the at least one imbalance element is mounted outside the housing on an output shaft protruding from the housing.
  • the housing can be made small and inexpensive. Accordingly, the need for transmission oil, with which the housing is to be filled, is decreasing.
  • the unbalance elements are easily accessible outside the housing. This simplifies maintenance and replacement work on the imbalance elements to a very considerable extent. Due to the displacement of the unbalance elements outside the housing, the unbalance elements are no longer in contact with the transmission oil. In particular, the unbalance elements must not pass through an oil sump, whereby the friction and thus the energy consumption of the entire vibration exciter can be reduced.
  • the gear arrangement of the vibration generator according to the invention may be in the context of the invention, a gear transmission, a Reibradan Aunt or a chain or belt transmission. Accordingly, the gear is then formed as a gear, friction wheel, sprocket or Riemenantriebsrad.
  • a preferred embodiment of the invention is that at least one first unbalance unit and at least one second unbalance unit are provided for forming a pair of imbalance units and that the imbalance units of a pair each have an output shaft which can be driven in different directions of rotation.
  • a particularly advantageous embodiment of the invention in terms of strength is that at least one output shaft of an imbalance unit extends out of the housing on both sides and that a first imbalance element on a first end side of the output shaft and a second imbalance element on an opposite second end side of the output shaft of the imbalance unit are arranged. There is thus a symmetrical arrangement of the unbalance elements of an imbalance unit to a center plane of the gear arrangement.
  • imbalance units can be arranged one above the other or next to each other.
  • a preferred embodiment is that the unbalance elements of an imbalance unit are arranged offset to the imbalance elements of another imbalance unit.
  • the output shafts of two imbalance units may be spaced slightly further than the radius of a disc-shaped imbalance element, wherein a Collision of the rotating disc-shaped imbalance units is achieved by an axial offset of the imbalance elements on the respective output shafts.
  • a high flexibility in the vibration generation is achieved according to a further preferred embodiment of the invention in that at least one unbalance element is releasably and replaceably mounted on the output shaft.
  • the disc-shaped imbalance element can be pushed about by means of a spline on a free end side of the output shaft and secured by a suitable securing device, such as a shaft nut or a Radialsplint.
  • a suitable securing device such as a shaft nut or a Radialsplint.
  • the housing is filled with gear oil for lubrication of the gear assembly.
  • the housing may be completely or preferably only partially filled with gear oil, wherein the lubrication of the upper parts of the gear assembly is effected by a wetted wetting.
  • a further preferred embodiment of the invention consists in that an adjusting unit is provided for adjusting the angular position of the imbalance units relative to each other.
  • the unbalance elements may be formed in two parts, with an uneven mass distribution can be amplified or attenuated by a rotation of the two parts.
  • an unbalance unit can also be adjusted in its angular position relative to the other imbalance units for influencing the amplitude of the oscillation via the adjusting unit with an adjusting wheel.
  • An expedient embodiment of the invention further consists in that the rotary motor is flange-mounted on the housing and a drive shaft of the rotary motor drives a drive pinion of the gear arrangement.
  • the rotary motor is mounted outside the housing, so that it can be easily changed and maintained.
  • each the output shafts center has a driven gear.
  • the output gear may be integrally formed with the output shaft or as a separate transmission element, such as a ring gear to be mounted on the output shaft.
  • the housing has a connection device with which the housing can be fastened to a working device.
  • the connecting device may be in the simplest variant, a simple flange with which the housing is attached approximately at a junction of a drill.
  • the connecting device may also comprise damping elements, so that vibrations are transmitted primarily in a certain direction and attenuated in other directions.
  • the invention relates to a construction machine, which is characterized in that a above-described vibration generator according to the invention is provided.
  • the construction machine can be designed as a drill or vibrator.
  • other applications are conceivable, such as soil compactors or sieve elements.
  • An inventive vibration exciter 10 which may also be referred to as a vibration unit, according to the FIGS. 1 to 4 a narrow box-shaped housing 40 in which a gear assembly 50 is provided.
  • a gear assembly 50 is provided about a flanged on the outside of the housing 40 rotary drive 30, the drive shaft 32 extends into the interior of the housing 40, a drive pinion 52 is set with an external toothing in rotation.
  • the drive pinion 52 initially drives an intermediate gear 54 with a corresponding external toothing.
  • the intermediate gear 54 meshes on the one hand with an external toothing of a first output gear 58 and thus drives a first unbalance unit 12.
  • the first output gear 58 is disposed centrally on an output shaft 20 which extends to both sides outside of the plate-shaped housing 40, such as FIG. 2 can be seen.
  • the output shaft 20 is rotatably mounted on the housing 40 via two output shaft bearings 24, not shown in detail.
  • the housing 40 is sealed by sealing rings.
  • On a first end side of the output shaft 20, a first disk-shaped imbalance element 16 and on a second end side of the output shaft 20, a second disc-shaped imbalance element 18 is releasably attached.
  • a reverse gear 56 is driven with an external toothing.
  • the reverse gear 56 meshes with a second output gear 58 of a second output shaft 20 of a second unbalance unit 14.
  • the unbalance unit 14 is constructed identically to the first unbalance unit 12 described above and has correspondingly a first unbalance element 16 and a second unbalance element 18, which in each case on one end side a second output shaft 20 are arranged, such as FIG. 2 can be seen.
  • the output shaft 20 of the second unbalance unit 14 rotates in opposite directions to the output shaft 20 of the first imbalance unit 12 about the axis 22, as in FIG. 1 is shown schematically by the rotation arrows.
  • the axis 22 of the two output shafts 20 are arranged parallel to each other, as well as the other axes of rotation of the gears of the gear assembly 50. Due to the rotating unbalance elements 16, 18, the housing 40 and the entire assembly is vibrated, the unbalanced masses are arranged such that a vibration amplitude is formed in a direction of action W, which schematically in the FIGS. 1 and 3 is shown.
  • a plate-shaped connecting device 70 may be arranged, with which the vibration exciter 10 can be releasably attached to a working device of a construction machine.
  • FIG. 1 and 2 is such a working device, namely a drill, in particular an earth or rock drill, partially shown.
  • the connecting device 70 is attached to a flange bearing head 9, in which a drill drive shaft 7 is rotatably mounted.
  • the bearing head 9 is supported by a Bohrantriebsgephase 6 by means of lateral support 8, wherein between the supports 8 and the bearing head 9 damper elements 11 of an elastic Rubber material are arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP13160158.5A 2013-03-20 2013-03-20 Générateur de vibrations, notamment pour une machine de construction Withdrawn EP2781269A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP13160158.5A EP2781269A1 (fr) 2013-03-20 2013-03-20 Générateur de vibrations, notamment pour une machine de construction
CA2845181A CA2845181C (fr) 2013-03-20 2014-03-07 Excitateur de vibrations, en particulier pour une machine de construction
JP2014053514A JP5837638B2 (ja) 2013-03-20 2014-03-17 加振機及び建設機械
US14/221,159 US9463490B2 (en) 2013-03-20 2014-03-20 Vibration exciter, in particular for a construction machine
CN201410103853.8A CN104107796B (zh) 2013-03-20 2014-03-20 一种用于施工机械的振动激励器
HK15100696.0A HK1200402A1 (en) 2013-03-20 2015-01-22 Vibration exciter, in particular for a construction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13160158.5A EP2781269A1 (fr) 2013-03-20 2013-03-20 Générateur de vibrations, notamment pour une machine de construction

Publications (1)

Publication Number Publication Date
EP2781269A1 true EP2781269A1 (fr) 2014-09-24

Family

ID=47997074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13160158.5A Withdrawn EP2781269A1 (fr) 2013-03-20 2013-03-20 Générateur de vibrations, notamment pour une machine de construction

Country Status (6)

Country Link
US (1) US9463490B2 (fr)
EP (1) EP2781269A1 (fr)
JP (1) JP5837638B2 (fr)
CN (1) CN104107796B (fr)
CA (1) CA2845181C (fr)
HK (1) HK1200402A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3524771A1 (fr) * 2018-02-13 2019-08-14 Eurodrill GmbH Dispositif de forage destiné au forage de terre ou de roche ainsi que procédé de mise à niveau d'un tel dispositif de forage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015003475U1 (de) * 2015-02-11 2016-05-12 Liebherr-Components Biberach Gmbh Rüttler
EP3165290B1 (fr) * 2015-11-06 2021-04-07 BAUER Maschinen GmbH Dispositif de production de vibrations et procede d'introduction de profile dans un sol
CN107856058B (zh) * 2017-12-06 2023-09-19 华北理工大学 一种工业机器人关节驱动装置

Citations (5)

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US3208292A (en) * 1963-05-28 1965-09-28 Gen Mills Inc Variable force oscillator
US4793196A (en) * 1987-03-24 1988-12-27 Key Technology, Inc. Gear coupled, counter-rotating vibratory drive assembly
US4942776A (en) * 1989-04-17 1990-07-24 Renold, Inc. Non-metallic gear shaker
DE19608815C1 (de) 1996-03-07 1997-10-02 Klemm Ingrid Vorrichtung und Verfahren zur Herstellung einer Dichtsohle im Boden
EP0824971B1 (fr) 1996-08-14 1999-06-09 Bauer Spezialtiefbau GmbH Générateur de vibrations

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US2897734A (en) * 1956-09-21 1959-08-04 Jr Albert G Bodine Sonic beam earth compacting system
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208292A (en) * 1963-05-28 1965-09-28 Gen Mills Inc Variable force oscillator
US4793196A (en) * 1987-03-24 1988-12-27 Key Technology, Inc. Gear coupled, counter-rotating vibratory drive assembly
US4942776A (en) * 1989-04-17 1990-07-24 Renold, Inc. Non-metallic gear shaker
DE19608815C1 (de) 1996-03-07 1997-10-02 Klemm Ingrid Vorrichtung und Verfahren zur Herstellung einer Dichtsohle im Boden
EP0824971B1 (fr) 1996-08-14 1999-06-09 Bauer Spezialtiefbau GmbH Générateur de vibrations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3524771A1 (fr) * 2018-02-13 2019-08-14 Eurodrill GmbH Dispositif de forage destiné au forage de terre ou de roche ainsi que procédé de mise à niveau d'un tel dispositif de forage
US10829996B2 (en) 2018-02-13 2020-11-10 Eurodrill Gmbh Drilling device for earth or rock drilling and method for retrofitting such a drilling device

Also Published As

Publication number Publication date
CA2845181A1 (fr) 2014-09-20
HK1200402A1 (en) 2015-08-07
JP2014180668A (ja) 2014-09-29
CN104107796B (zh) 2017-04-12
US20140283633A1 (en) 2014-09-25
JP5837638B2 (ja) 2015-12-24
CN104107796A (zh) 2014-10-22
US9463490B2 (en) 2016-10-11
CA2845181C (fr) 2017-12-05

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